Lubricator



(No Model.)

W. H. CHAI@ LUBRIGATOR.

Patented Sept. 30, 1884.

w, Kw 07 Lm; E@ M T W W litten Starts armar @einen VARREN HILLIARD CRAIG, OF LAVRENCE, MASSACHUSETTS.

Lesmo/aros.

DFECIFICATION forming part of Letters Patent No. 305,744, dated September 30, 1884.

Application led February l, 1883.

declare the same to be described in the folsides.

lowing specification, and represented in the accompanying drawings, of which- Figure l is a vertical and transverse section of a lubricator provided with my invention, the nature oi' which is defined in the claims lhereinafter presented. Fig. 2 is a similar seetion, but taken in a plane at right angles to the plane ot' section of Fig. 1.

The lubricator hereinafter described is provided not only with means by or through which a person can see the drops of water as they pass from the condenser' into the oil-reservoir, but with means by or through which he can also see the drops of oil as they may be discharged from the oil-reservoir and pass therefrom to the duct by which they are conveyed into the steam-engine cylinder or valve-chamber thereof.

In the drawings, A denotes the condenser, having extending upward within it nearly to its top a pipe, which at its lower part is to communicate with the pipe for supplying the engine with steam.

Below the condenser A is the oil-reserroir C, between which and the condenser is an oilobservation-chamber, D, having a pane, a, of glass inserted in either or each of its opposite A tube, b, leads from the neck of the oil-reservoir into the observation-chamber D in order to open communication between said neel; and chamber. Fig. 2 of the drawings represents the said observation-chamber D as provided with two glass panes arranged to cover openings in two opposite sides of such chamber, there being around each of such openings a recess to receive the pane, and there is screwed into such recess an annulus or annular nut to hold the pane in place and admit of it being seen through. The panes are ar- (No model.) v f having the two panes arranged close to each other and in opposite parts of the chamber, the drops can be seen through either pane, and much better or with more certainty than when the chamber has but one pane.

In the upper part of the observation'chamber is an opening, c, by which communication between the pipe B at its lower part, or with the induet E, by which such pipeis to receive its steam, is'secured. r

From the foot of the condenser a passage, d, leads down partly around the observationchamber D into a ralve'chamber, F, arranged horizontally within the neck of the oil-reservoir, such chamber being closed at its inner end, except in having an opening, e, at and through the closuref. To this opening there is a valve, g, whose stein h screws into a tubular projection, fi, ol' the neck, a sluiting-box,

it, being applied to the stem and projection.

Directly in front of theclosuref there is an opening, Z, in the neck of the oil-reservoir,

'such opening having fitted into it aglass pane,

m, which is arranged so close to the closure that a drop of water, after escaping from the valve-chamber F through the closure, shall touch both the pane and the closure in passing down between them. This insures the drop being seen incase the pane may be clouded with steam or vapor or oil. The glass paneis also arranged so that each drop oi' water may freely escape from it into the reservoir. At the lower end the oil-reservoir is furnished a wastecocli, Gr, while at the upper part of its neck, the oil-reservoir has an induet, H, for supplyingit with oil, such induet not oni)r having a lateral month, n., leading down into it1 but being provided with a screw, 0, arranged, as shown, to effect the closing of such mouth at its lower part, as occasion may require. The pipe B may be dispensed with, and a pipe may lead from the upper part of the condenser A directly into the steanrpipe; but in this case the obscrvatioirchamber must have communication with the said v steampipe. From this it will be seen that with the pipe B opening at its foot into the steam-induct but one such induet becomes necessary.

In the operation of this lubricator the steam flows from the steam-pipe into the pipe B; thence upward. through. and out of such pipe IOO into the condenser, where it becomes condensed, and in the -form of water passes down into the valve-chamber, and from thence into the oil-reservoir7 and, descending through the oil therein by its specific gravity, it will elevate the oil and cause it to iow into and through the observation-chamber, which will be filled with water by condensation ot' the steam.

Owing to the water in the condenser standing higher than in the observation-chamber, the water ot' the latter cannot pass down therefrom into the oil-reservoir. As each drop of oil may pass upward through the observationchamber such drop may be seen through its pane or panes of glass.

I am aware that a displacement-lubricatorH having an observing-port in front of the dischargingeduct of the watertrap below the condenser is not new, and therefore I do not claim, broadly, a lubricator of such class provided with an observing-port arranged to enable a person to see lthe water in its discharge from the water-trap:

My lubricator, besides such a port, has au observation-chamber arranged as described, whereby a person, through a different port, may see the oil in its discharge into the duet by which it is led to the steam-pipe.

I do not herein claim what is claimed by me in Letters Patent No. 281,241, dated July 17 1883, the specification and drawings of which illustrate in connection therewith what is herein claimed by me; nor do I herein claim a steam-engine lubricator consisting of a condenser and oilreservoir, communicating with each other and having an oil-observation chamber arranged between them, and means of communicating with the oil-reservoir and the induct of the condenser.7

I claimW 1. A steanrengine lubricator provided with a condenser andan oil-reservoir, to communicate with each other, as described, and also having an oil-observation chamber arranged between them, and provided with one or more panes of glass in it, and means of communication with the oil-reservoir and the induct of the condenser, and having a regulating-valve to control the feeding of the oil from the reservoir tothe parts of the engine to be lubricated, all being substantially as set forth.

2. In a lubricator, an observatioil-chamber provided with recessed and open oppositesides, and with glass panes covering their openings, and arranged in close proximity to each other in recesses about such openings, and confined therein by rings secured into such recesses, the said chamber reservoir and condenser, and being adapted to receive a fluid through which the rapidity of the feed can be readily observed.

3. In a lubrieator, an observationchamber containing iiuid, and provided with openings in its opposite sides, and glass panes covering such openings, and set in close proximity lto each other within recesses, and held in place by rings screwed into the said recesses, in combination with a dry tube, all being substantially as set forth.

XVARREN HILLIARD CRAIG.

XVitnesses:

R. H. EDDY, E. B. PRATT.

communicating with the oil 

